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Compound S
Figure 9.38 The broadband proton-decoupled
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Chapter 9 Solutions
Organic Chemistry
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- The following 1H NMR peaks were recorded on a spectrometer operating at 200 MHz. Convert each into δ units. (a) CHCl3; 1454 Hz (b) CH3Cl; 610 Hz (c) CH3OH; 693 Hz (d) CH2Cl2; 1060 Hzarrow_forwardFollowing is the mass spectrum of an unknown compound. The two highest peaks are at m/z 120 and 122. Suggest a structure for this compound. (Data from http://webbook.nist.gov/chemistry/.)arrow_forwardI need help with thisarrow_forward
- 4. A compound having the molecular formula CsH10O2 exhibits the following 'H-NMR-Figure 4a Figure 4a Figure 4b Multiplet @ 1.46 ppm Multiplet @ 1.22 ppm Triplet @ 2.20 ppm Triplet @ 0.78 ppm PPM and 13C-NMR-Figure 4b spectra. Identify the compound. The spin multiplicities are indicated below. 'H-NMR (400 MHz, CDCI3 at 300K) 8: 11.8 (s), 2.20 (t), 1.46 (m), 1.22 (m), 0.78 (t). 13C-NMR (400 MHz, CDCI3 at 300K) 8: 180.8 (s), 33.8 (t), 26.8 (t), 22.4 (t), 3.58 (q).arrow_forwardThe mass spectrum of 2,3-dimethylpentane also shows peaks at mlz = 57 and 43. Propose possible structures for the ions that give rise to these peaks.arrow_forwardPls explain tooarrow_forward
- Predict the structure of a compound based on this 13C NMR spectra. The chemical formula of this compound is C4H6O2. Briefly explain your answer.arrow_forwardHelp needed with analyzing the H-NMR spectra and answering the table below. Thank you in advance!arrow_forwardplease solve in detail plzarrow_forward
- Show the calculation step by step.arrow_forwardHow many peaks would the 1H NMR spectrum of the following molecule have?arrow_forwardWhat will be the 1H-NMR spectrum for the next molecule BrClCHCH2COCH3 and illustrate the corresponding signals according to their chemical displacement, multiplicity and integration. Indicate two basic differences that exist between the spectra of 1H y 13C in NMR. Establish the difference between the multiplicity of a signal and the integral (integration) of the signal in spectroscopy of 1H-NMR.arrow_forward
- Organic ChemistryChemistryISBN:9781305580350Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. FootePublisher:Cengage LearningPrinciples of Instrumental AnalysisChemistryISBN:9781305577213Author:Douglas A. Skoog, F. James Holler, Stanley R. CrouchPublisher:Cengage Learning
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